Insert portion of a pipe fitting



FIG. 1 is a perspective view of an insert portion of a pipe fitting showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being the mirror image;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof. 

CLAIM The ornamental design for a insert portion of a pipe fitting, as shown in the drawings. 